gical processing of nickel sulfide flotation concentrates at ambient pressure. A distinction is made among the different leaching processes based on the type of lixivi-ant used to achieve base metal dissolution from the concentrate and whether concentrate pre-treatment by mechanical activation, roasting, or sonication to render ...
DOI: 10.1016/j.mineng.2023.108418 Corpus ID: 263281019; Selective extraction of nickel and cobalt from disseminated sulfide flotation cleaner tailings using alkaline glycine-ammonia leaching solutions
The flotation kinetics of principal ore minerals is shown in Fig. 2.As is evident, the principal ore minerals—pentlandite and chalcopyrite—are characterized by greater floatability than the others and, owing to this, practically all the opened grains and rich aggregates of these minerals pass to the concentrate of between-bath flotation.
The extraction of nickel (Ni) from sulfide resources commences with flotation to produce a concentrate which is then smelted to produce a nickel-enriched …
Metal recovery from nickel sulfide flotation tailings using leaching was investigated. •. The addition of ferric chloride resulted in significant improvement on …
Nickel sulphide ores containing pentlandite, pyrrhotite and talc have traditionally been treated by bulk sulphide flotation, an approach which seeks to …
With the vigorously growing demand of the steel industry, corrosion resistance alloys, clean energy industries, and a variety of engineered infrastructure or technology, high-grade nickel ores are being exhausted gradually in the world. This review outlines metallurgical processes for nickel production from various nickel sulfide ores …
optimum conditions for the flotation of nickel, copper and cobalt from a nickel-copper sulphide ore. The parameters investigated include collector dosage, percentage solids, …
The extraction of nickel (Ni) from sulfide resources commences with flotation to produce a concentrate which is then smelted to produce a nickel-enriched phase called matte, and further refined to produce pure Ni products as well as by …
The Bureau of Mines investigated the flotation responses of two copper nickel ore samples from the Duluth Complex with the objective of recovering bulk sulfide concentrates. One of the ores studied was taken from a test pit; the other was taken from a test shaft. The samples were quite similar except that the pit sample analyzed 0.35 pct …
The separation of copper and nickel is achieved by differential flotation, if the mineral grains can be liberated by grinding. Normal practice is to depress the nickel sulfides by increasing the pH of the flotation pulp to between 9 and 11 and selectively floating the copper minerals. ... The final phase to appear is the nickel sulfide, which ...
Nickel sulfide froth flotation is a well-established process used to separate nickel-containing minerals from their ore. This technique is crucial for producing high-grade nickel concentrates used ...
The extraction of nickel from sulfide ores typically commences with comminution and flotation to produce a sulfide concentrate, which is subsequently …
ABSTRACT The extraction of nickel (Ni) from sulfide resources commences with flotation to produce a concentrate which is then smelted to produce a nickel-enriched phase called matte, and further refined to produce pure Ni products as well as by-products, such as cobalt (Co), copper (Cu) and precious metals. However, the …
The flotation treatment of nickel–copper sulphide ore at the Western China nickel mine has historically been difficult due to the presence of large amounts of serpentine minerals.[1] ... Investigation of the flotation performance of nickel sulphide by high intensity agitation pretreatment. Yanfei Chen a Department of Minerals …
The effect of microwave treatment on the grinding and flotation performance of a typical copper–nickel sulfide ore was evaluated, based on the determination of its microwave absorption capability, grinding and flotation indexes such as crack percentage, mineral liberation degree, particle size distribution, relative work index …
This paper presents both the fundamentals of sulphide mineral flotation and the practical aspects of sulphide ore flotation. The fundamental aspects of the flotation of sulphide minerals both in the absence and presence of thiol collectors are discussed in relation to their crystal structure, surface chemistry and electrochemical characteristics.
Flotation of low grade nickel sulfide ores into a concentrate suitable for smelting, and at acceptable nickel recovery, can be challenging. Alteration of the gangue minerals can mean talc is present in considerable quantities. Talc floats naturally and can be very difficult to depress without significant nickel losses. High talc bearing ores have …
The flotation of nickel sulfide ore having serpentine and talc as the main gangue minerals, is severely affected by features such as, containment and sliming. If the MgO content is greater than a certain percentage (typically 6.8%), the melting point and viscosity of the slag increases, thus resulting in higher operating temperatures, and ...
flotation process comprising flash flotation and staged coarse and fine rougher flotations, each followed by two cleaner flotation stages. The primary reagents employed during the flotation process included guar gum as a gangue minerals depressant, sodium ethyl xanthate as a collector for nickel sulfide minerals, copper …
The shift towards a more nickel-rich sulphide with lower sulphur additions is evident in the flotation results, with the same nickel grade being achieved with the lower sulphur grade, when compared to the higher sulphur addition. Download : Download full-size image; Fig. 17.
The majority of the published studies on atmospheric leaching of nickel sulfide flotation concentrates have focused on leaching in chloride media due to the …
The effect of the depressant galactomannan (KGM) on the depression of talc and the flotation of a nickel–copper sulfide ore have been investigated through microflotation, batch flotation and industrial flotation tests, zeta potential and infrared spectrum measurements. The flotation results indicated that KGM had a straining …
1. Introduction. Nickel is an important strategic metal produced at over 2 million tonnes annually [1].Approximately 60% of all Ni is consumed in the production of stainless steel [2, 3].Currently, Ni is primarily extracted from two types of ores: laterites and sulfides [[4], [5], [6], [7]].Although sulfide ores account for a smaller fraction of global Ni …
Nickel sulphide ores containing pentlandite, pyrrhotite and talc have traditionally been treated by bulk sulphide flotation, an approach which seeks to maximise nickel recovery and talc rejection but which does not reject pyrrhotite. Concentrates have therefore been of moderate grade containing as much pyrrhotite as pentlandite or more.
Nickel sulfide minerals such as pentlandite can, in general, be separated from their gangue by flotation using a thiol group of collectors like xanthates and alkyl dithiophosphates in the presence of variety of activators, depressants and dispersants. Since nickel sulfides contain other sulfides such as pyrrhotite, pentlandite and chalcopyrite ...
In nickel-copper sulfide ore processing, serpentine is a common gangue mineral encountered in complex sulfide ores and can easily cause entrainment during flotation . Large amounts of serpentine in the flotation concentrate reduces the effectiveness of smelting, often resulting in the imposition of smelter penalties on mineral …
The usual method of nickel extraction from sul Rde ores is through the production of nickel matte after enriching the nickel content of the ore. This is com-monly carried out by …
gations into the leaching of nickel sulfide flotation concen-trates at ambient pressure are reviewed in Part III of this series. The processing of whole nickel sulfide ores is not the subject of this review and bioleaching of whole Ni and Cu- Ni sulfide ores has been previously covered by Watling (2008).
Abstract. Millions of tons of nickel-bearing tailings, derived from disseminated sulfide resources, has been or are being dumped as waste and the …
